What does Morgana have against Camelot, anyway?
Prolly that her lil sis had the luck to become a Queen thanks to a magic sword that said "Yeah, you're cool," instead of working her ass off in a medieval setting where she was looked down off to learn the great magicks to become Queen. So, she dislikes Artura for cheating.
This, probably. Morgana worked her butt off to gain her powers, and then Arturia derps into a magical artifact that not only makes her stronger than her, but gives her a kingdom too. Meanwhile, everybody hates Morgana for the audacity of wanting to do wizardy things and loves her sister, despite her having magic too, just because hers is yellow instead of purple or whatnot.
And then the Morgana hate is so bad that, like somebody else pointed out, her own daughter had to
work to
redeem herself from
being her daughter. She didn't
just get disowned by her daughter, everybody acknowledging that she disowned her mother was considered a
reward.
That'd drive
anybody loopy.
And then along comes Mordred, living proof that the Arturia love is just as shallow as it seemed to be, and he's like, the
only person who doesn't hate her. So she dotes on him, because he's her nephew.
So Mordred grows up, doted on by the nice, if a little bit weird, aunt that everybody else claims is an evil witch. He gets to find out firsthand the corruption inherent in the rulers of Camelot. Eventually, he hits a breaking point, realizes that they've got to go, because they're becoming as bad as the people they're fighting, and turns against them.
Naturally, the Aunt who's already seen all of the downsides of the system he's rebelling against is going to throw in her lot with him.
And then one of the very few people she likes gets thrown in an icicle for a million years, literally.
